Home / 28,356.57-42,544.40-12,559.41

Finding the Fourth Proportional to 28,356.57, 42,544.40 and 12,559.41

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Solution

The fourth proportional to 28,356.57, 42,544.40 and 12,559.41 is: 18,843.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,356.57 : 42,544.40 = 12,559.41 : x
  2. Step 2: Convert to fraction form
    28,356.57/42,544.40 = 12,559.41/x
  3. Step 3: Cross multiply
    28,356.57x = 42,544.40 × 12,559.41
  4. Step 4: Simplify right side
    28,356.57x = 534,332,500.01
  5. Step 5: Solve for x
    x = 534,332,500.01/28,356.57
  6. Step 6: Final answer
    x = 18,843.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.